Quotation projection or similar apparatus



Jan. 23, 1934. A. D. EITZEN 1,944,174

QUOTATION PROJECTION 0R SIMILAR APPARATUS Original Filed Dec. 6, 1929 2 Sheets-Sheet 1 Halts:

INVENTOR A1 #D- ,E'if/zm ATTORNEY Jan. 23, 1934. A. D. E ITZEN ,9

QUOTATION PROJECTION OR SIMILAR APPARATUS Original Fild med 6, 1929 ZSheets-Sheet 2 INVENTOR A I aazafiitzem BY X9 Z7; M

A ATTORNEY Patented Jan. 23, 1934 1,944,174 r ce I QUOTATION PROJECTION R SIMILAR APPARATUS August D. Eitzen, Rockville Center, N. Y., as-

signor to News Projection Corporation, New York, N. Y., a corporation of New York Application December 6, 1929, Serial No. 412,056 Renewed April 18, 1933 8 7 Claims.

must run at high speed, and must also stop and start at irregular intervals depending on the rate of tape delivery from the ticker, under control of mechanism which is in turn controlled by the loop or variations in a slack portion of the tape between the ticker and the projector.

In a low speed machine, the motor of the tape 1 puller will stop quickly enough when the circuit is interrupted by straightening of the loop to a predetermined extent; but in the high speed machine, the pulling motor has greatly increased momentum, and when controlled by ordinary means as heretofore known or proposed, will continue to run for an appreciable time after the tape loop has been straightened'to the pre-- determined extent and after the motor circuit has thus been broken, resulting in many cases in pulling the tape from the ticker aft'er tape '30 movement'should have stopped; and this in turn causes improper movements of the type wheels, resulting in subsequent erroneous printing, or other derangements, as understood by skilled persons.

To overcome the stated difficulties and enable the high speed motor or tape puller to be successfully employed in connection with a high speed ticker, the invention provides, in combi nation with the ticker, projector, tape puller posterior to the projector including a high speed motor, and motor circuit controller actuated by thetape loop, checking or braking apparatus acting on the tape puller or more particularly upon the motor, and also under control'of the circuit controller, and acting when the motor circuit is interrupted ,to quickly stop the tape feed (or motor) and thus prevent excessive tape ,movement; or in brief, the motor is stopped promptly regardless of its momentum, and tape movement beyond the ticker is stopped with equal promptness when the tape loop is straightened to the predetermined extent, with avoidance of improper tape movement, derangement of the ticker or other difliculties sufficiently above referred to. v

The characteristics and advantages of the invention are further sufiiciently explained in connection with the following detail description of the accompanying drawings, which show one representative embodiment. After considering a high speed tapethis example, skilled persons will understand that many variations may be made without departing from the principles disclosed, and I contemplate the employment of any structures that are" properly within the scope of the appended claims. L

Fig. 1 is a plan view of mechanism embodying the invention in one form.

Fig. 2 is a front elevation.

Fig. 3 is an elevation, enlarged, from the left in Fig. 1, of the motor and brake mechanism.

Fig. 4 is a top plan of the brake mechanism.v

Fig. 5 is a section at 5-5, Fig. 4.

In Figs. 1 and 2, 10 is a ticker, in this case a high speed ticker, 11 a projector, 12 the tape puller posterior to the projector, 13 the motor which is in this case belt-connected to the puller, 14 the tape passing from the ticker through the projector to the tape puller, 15 rewinding apparatus, belt-connected to the tape puller for winding the tape into a roll after it leaves the puller, and 16 a mercury switch in the motor circuit, this switch being controlled in the usual way by an element 16a running on the tape loop, or portion of the tape between the ticker and projector, and acting to break the motor circuit when the bend of the loop is partly taken up after a temporary stoppage of the ticker, in order to prevent complete straigtening movement of the tape through the ticker after the ticker stops. Details of the switch and switch control mechanism may be a2; usual and are therefore not shown.

In the arrangement shown, the pulley 20 of the moior is connected by a belt 21 to the driving pulley of the tape pulling mechanism, and a brake is arranged to act on the motor pulley 20; evidently, however, the motor may be otherwise connected to the pulling mechanism and the brake may be differently arranged or located to cause stoppage of the pufling mechanism promptly when the motor circuit is broken. In the present arrangement where the motor is belt-connected,

it is preferable to apply the braking force to the motor pulley, since the principal momentum effect is in the motor.

The brake mechanism (Figs. 1, 3, 4 and 5) includes a two-armed bracket 24 supporting a solenoid 25 having a core 26. A column 27 supports brake arms 28, which have ears 29 bent inward and pivotally secured in relation to each other and tothe column by a screw 30. At their ends adjacent the solenoid, the brake arms have armatures or pale pieces 31 of ferrous metal, ends of which are opposed to the magnet core. A spring such as the strip spring 32'has its ends connected to the brake-arms or pole pieces and has its central part engaged about the pivot or screw 30 in such manner as to tend to separate the armatures or pole pieces and converge the other ends of arms 28, which carry friction pieces or blocks 33 of suitable material such as fibre, opposed to I opposite faces of the motor pulley 20. The motor circuit, Fig. 1 runs from one side of the supply line L through a lead 35 to one terminal of switch 16, through a lead 36 from the other switch terminal to one terminal of the solenoid 25; from the other solenoid terminal through a lead 37 to one terminal of the motor, and from the other motor terminal through a lead 38 to the other side of the line.

By the described arrangement, when the motor circuit is closed the solenoid attracts armatures 31 and retracts the brake blocks 33 from contact with pulley 20. The motor runs at high speed, operating the pulling mechanism to pull the tape at corresponding speed through the projecior. When the ticker stops, the bend of the tape loop is quickly taken up, and at the predetermineu point while a substantial bend still exists in the loop, the switch 16 is operated to open the motor circuit, and simultaneously the circuit through the solenoid is interrupted, freeing the armatures from magnetic pull, and spring 32 actuates the brake arms, applying the brake blocks to the pulley and stopping the motor, which has substantial momentum on account of high speed, practically simultaneously with the opening of the circuit; or so promptly that the predetermined amount of slack or bend in the tape loop is not eliminated and there is no excessive tape feed beyond the ticker, and no possibility of derangement of the ticker. When the ticker starts again, creating additional slack in the tape loop, the switch 16 is again actuated to close the motor circuit; the solenoid 25 is simultaneously energized to retract the brake members, the motor starts and runs at high speed until the next action, and so on.

While I have shown a simple series connection of the brake solenoid in the motor circuit, this is not essential, and other circuit arrangements may be provided, if necessary.

While the particular brake mechanism shown is satisfactory and preferred in some cases, it will be evident that many variations may be made in the design or arrangement of this mechanism.

Iclaim:

1. A tape feed controlling device in a stock quotation projecting machine having a tape puller posterior to the projector, an electric motor driving the puller, a switch for opening and closing the motor circuit and controlled by the tape intermediate the ticker and the projector, and a brake under control of the switch and acting promptly upon interruption of the motor circuit to' stop tape movement posterior to the ticker.

2. A tape feed controlling device in a stock quotation projecting machine having a tape puller posterior to the projector, an electric motor driving the puller, a switch for opening and closing the motor circuit and controlled by the tape intermediate the ticker and the projector, and

a brake .under control of theswitch and acting promptly upon interruption of the motor circuit to absorb momentum and stop the tape puller motor circuit, the solenoid and brake being so ing the motor circuit and controlled by the tape intermediate the ticker and the projector, and a brake under control of the switch and acting promptly upon interruption of the motor circuit to apply braking force to the motor and promptly stop feed of tape by the tape puller.

4. A tape feed controlling device in a stock quotation projecting machine having a tape puller posterior to the projector, an electric motor driving the puller, a switch for opening and closing the motor circuit and controlled by the tape intermediate the ticker and the projector, and a brake arranged to operate upon a driving part of the strip puller and a solenoid in the switch and arranged that upon interruption of the circuit the brake is applied to absorb momentum, promptly stop the tape puller and prevent excessive tape, feed.

5. A tape feed controlling device in a stock quotation projecting machine having a tape puller posterior to the projector, an electric motor driving the puller, a switch for opening and closing the motor circuit and controlled by the tape intermediate the ticker and the projector, a brake arranged to operate upon a driving part of the strip puller and a solenoid in the switch and motor circuit, and spring'means normally urging the brake to active position, the solenoid acting on an armature connected to the brake and maintaining the brake in inactive condition while the motor circuit is closed. g

6. A tape feed controlling device in a stock quotation projecting machine having a tape puller posterior to the projector, an electric motor driving the puller, a switch for opening and closing the motor circuit and controlled by the tape intermediate the ticker and the projector, a friction brake arranged to act on a driven member of the motor, spring means normally tending 115 to apply the brake, and a solenoid in the motor circuit acting to retract the brake when the circuit is closed and to cause brake application and prompt stoppage of the motor and tape puller upon interruption of the motor circuit 7. A tape feed controlling device in a stock quotation projecting machine having a tape puller posterior to the projector, an electric motor including a pulley connected to the tape puller; a friction brake, spring means urging it 1213 to engage the pulley, and a solenoid in the motor circuit arranged to retract the brake when energized while the motor circuit is closed, and to permit brake application when deenergized upon opening of the motor circuit.

8. A tape feed controlling device in a stock quotation projecting machine having a tape puller posterior to the projector, an electric mo tor including a pulley connected to the tape puller, pivotally mounted brake arms having brake elements engaging at opposite sides of the pulley, spring means tending to move the brake elements to active position, armatures on the brake arms. and a solenoid between the arma tures and acting when energized to attract them and retract the braking elements, the solenoid being controlled by the switch so that it is energized when the motor circuit is closed and deenergized when the motor circuit is opened by the switch. AUGUST D. EITZEN. 

